#!/bin/bash
#

read -p "输入数据：" data

if [ $data == "Linux" -o $data == "linux" ];then 
    echo "红帽"
elif [ $data == "Windows" -o $data == "windows" ];then 
    echo "微软"
elif [ $data == "MacOS" -o $data == "macos" ];then 
    echo "苹果"
else
    echo "其他"
fi
